Quintet Ultra was a grappling team survival event held by Quintet on December 12, 2019 at the Red Rock Casino in Las Vegas, USA. This event was based around teams representing four of the most notable MMA promotions: the UFC, Pride Fighting Championships, Strikeforce and World Extreme Cagefighting. Combatants were chosen based on how closely linked their careers were to those promotions.

• Kazushi Sakuraba
• Sean O'Malley
• Anthony Johnson
• Anthony Smith
• Clay Guida
• Gilbert Burns
• Jake Shields
• Gilbert Melendez